The person spoke on the condition of anonymity because the team has not announced the workouts. Fox Sports first reported the Bills' plans on Saturday.

Leinart, a 2006 first-round draft pick, is a free agent after spending last season with Oakland.

Buffalo is in need of help at quarterback after veteran Kevin Kolb experienced concussion-like symptoms during a 30-7 preseason loss to Washington on Saturday. The Bills are already without rookie first-round pick, EJ Manuel, who has missed a week after hurting his left knee.

That leaves undrafted rookie Jeff Tuel as the only healthy quarterback on Buffalo's roster.